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Micro/nano structure cadmium sulfide/aniline oligomer composite material preparation method

A technology of aniline oligomers and composite materials, applied in chemical instruments and methods, organic compound/hydride/coordination complex catalysts, chemical/physical processes, etc., to enhance photoelectric response, improve photoelectric response performance, and capacitance performance boosted effect

Active Publication Date: 2018-10-19
NINGBO INST OF TECH ZHEJIANG UNIV ZHEJIANG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the preparation of micro / nanostructured cadmium sulfide / aniline oligomer composites has not been reported so far.

Method used

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  • Micro/nano structure cadmium sulfide/aniline oligomer composite material preparation method
  • Micro/nano structure cadmium sulfide/aniline oligomer composite material preparation method
  • Micro/nano structure cadmium sulfide/aniline oligomer composite material preparation method

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Experimental program
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Effect test

Embodiment 1

[0034] Step 1, 1mmol cadmium nitrate, 2mmol thiourea, 1mmol hexamethylenetetramine are dissolved in 100ml deionized water to prepare a solution, and adjust the pH value of the solution to 10;

[0035] Step 2. Transfer the above solution to a hydrothermal reaction kettle for heating, control the temperature at 200°C, and react for 8 hours, then naturally cool to room temperature and centrifuge at a speed of 10,000r / min, and wash the precipitate obtained by centrifugation with deionized water and ethanol 10 times, after drying, cadmium sulfide nanoparticles were prepared.

[0036] Step 3. Dissolve 10 mg of cadmium sulfide nanoparticles and 10 mg of aniline pentamer in 20 ml of dimethyl sulfoxide prepared in step 2, and stir magnetically for 20 min to obtain a dispersion, centrifuge at 8000 r / min, discard For the supernatant, the precipitate was dried in a vacuum drying oven at 60° C. for 14 hours to obtain a cadmium sulfide nanoparticle / aniline pentamer composite material.

Embodiment 2

[0038] Step 1, 5mmol cadmium sulfate, 2mmol cysteine, 2mmol reduced glutathione are dissolved in 200ml deionized water to prepare a solution, and the pH value of the solution is adjusted to 8;

[0039] Step 2. Transfer the above solution to a hydrothermal reaction kettle for heating, control the temperature at 260°C, and react for 6 hours, then naturally cool to room temperature and centrifuge at a speed of 8000r / min, and wash the precipitate obtained by centrifugation with deionized water and ethanol 10 times, after drying, cadmium sulfide microsheets were obtained.

[0040] Step 3. Dissolve 20 mg of cadmium sulfide microflakes and 10 mg of aniline tetramer in 50 ml of N,N-dimethylformamide prepared in step 2. After ultrasonication for 15 minutes, a dispersion is prepared, and centrifuged at 10,000 r / min. , discarding the supernatant, and drying the precipitate in an oven at 80°C for 8 hours to obtain a cadmium sulfide microsheet / aniline tetramer composite material;

Embodiment 3

[0042]Step 1, 1mmol cadmium nitrate, 1mmol cysteine, 1mmol hexamethylenetetramine are dissolved in 100ml deionized water to prepare a solution, and adjust the pH value of the solution to 7;

[0043] Step 2. Transfer the above solution to a hydrothermal reaction kettle for heating, control the temperature at 200°C, react for 4 hours, cool to room temperature naturally and centrifuge at a speed of 12000r / min, and wash the precipitate obtained by centrifugation with deionized water and ethanol 10 times, after drying, cadmium sulfide micron particles were obtained.

[0044] Step 3, 10 mg of cadmium sulfide micron particles prepared in step 2, 10 mg of aniline heptamer were dissolved in 10 ml of ethanol, magnetically stirred for 30 min to obtain a dispersion, centrifuged at 8000 r / min, discarded the supernatant, The precipitate was dried in a vacuum oven at 50°C for 12 hours to obtain a cadmium sulfide microparticle / aniline heptamer composite material;

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Abstract

The invention relates to a micro / nano structure cadmium sulfide / aniline oligomer composite material preparation method, which comprises: preparing a micro / nano structure cadmium sulfide material through a hydrothermal method, dissolving the micro / nano structure cadmium sulfide and an aniline oligomer in an organic solvent, completely mixing, forming a micro / nano structure cadmium sulfide / aniline oligomer composite material dispersion liquid by using pi-pi stacking and electrostatic interaction, and removing the solvent to obtain the composite material. According to the present invention, the micro / nano structure cadmium sulfide / aniline oligomer composite material can be prepared by using the method; the method is economical and effective, and has universal applicability; and the prepared composite material has high capacitance and significantly-improved photoelectric response performance compared to the single micro / nano structure cadmium sulfide and the single aniline oligomer.

Description

technical field [0001] The invention relates to a method for preparing a micro / nano structure cadmium sulfide / aniline oligomer composite material, which belongs to the field of micro / nano material preparation. Background technique [0002] Cadmium sulfide (CdS) is an excellent semiconductor material with a band gap of 2.42eV. It has excellent photoelectrochemical properties, and its photoelectric properties will vary with its grain size and shape. Sensing and other optoelectronic devices have attractive application prospects. The use of different preparation methods and conditions to obtain cadmium sulfide semiconductor materials with different micro / nano structures has been one of the research hotspots in the field of inorganic semiconductor materials. Among them, the hydro / solvothermal method is a common method for the controllable preparation of cadmium sulfide materials. On the other hand, cadmium sulfide particles are easy to agglomerate, and are prone to photocorrosio...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J31/26B01J35/02H01L51/46H01L51/42B01J35/00
CPCB01J31/26H10K85/111B01J35/39B01J35/33B01J35/50Y02E10/549
Inventor 邓萌陈飞陈珏
Owner NINGBO INST OF TECH ZHEJIANG UNIV ZHEJIANG
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